xsl-list
[Top] [All Lists]

Re: finding elements lowest in hierarchy?

2004-01-27 08:38:11
At 2004-01-27 13:53 +0000, james walker wrote:
What happens if the hierarchy is alot bigger? Is it possible to use "descendent" to find if any of the lowest level descendents of a particular node contain a particular attribute?

Sure ... review what I said earlier:

To look anywhere below oneself, use ".//" ... to look for any element use "*" ... to filter only those elements that do not have any element, comment or PI children (i.e. lowest in the hierarchy), use the predicate "[not(node())]" and to check for a particular attribute existing use the predicate "[(_at_)minimum]".

Just skip the predicate that qualifies the node as being at the bottom, and you end up with:

  test=".//*[(_at_)minimum]"

as the boolean test of any elements with the attribute. Alternatively since all you are doing is testing you could just have:

  test=".//*/@minimum"

to address the attributes, but the way you worded it you wanted to address the elements that have the attribute.

How much reading of XPath have you done? I would recommend reading the specification or one of the many resources that can help you understand the composition of location path expressions.

......................... Ken


--
Public courses: sign up for one or both soon to reserve your seat!
Each week:  Monday-Wednesday: XSLT/XPath;  Thursday-Friday: XSL-FO
Washington, DC: 2004-03-15           San Francisco, CA: 2004-03-22
Hong Kong, China: 2004-05-17           Bremen, Germany: 2004-05-24
World-wide on-site corporate, government & user group XML training

G. Ken Holman                 mailto:gkholman(_at_)CraneSoftwrights(_dot_)com
Crane Softwrights Ltd.          http://www.CraneSoftwrights.com/s/
Box 266, Kars, Ontario CANADA K0A-2E0    +1(613)489-0999 (F:-0995)
Male Breast Cancer Awareness  http://www.CraneSoftwrights.com/s/bc


XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list